PointersLab

[DisplayedPrism3]

Hi guys I keep getting some errors in this code if you help explain it, I would
Greatly be thankful

#include <iostream>
#include <cstdlib>
#include <cmath>
#include <string>

int* addToSize (int*, int);

using namespace std;

	int* addToSize(int* newArray, int newSize) 
{
	    int* expandSize= new int [newSize +1];
	
	        for (int index = 0; index < newSize; index++)
	        {
		expandSize[index]= newArray[index];
	        }
    for (int index = newSize; index < (newSize+1); index ++) 
	{
		expandSize[index]=0;
	}	
	return expandSize;
}

int main()
{ 	
	
	int userInts;
	int usersSize=0;
	int *memory; //dynamically allocate an array
	int num;
	
	
	cout << "User Please enter new array size\n";
	cin >> usersSize; 
	
	memory = new int [usersSize];
	
	for (int count = 0; count < usersSize; count ++)
	{
		cout << "Please enter the value for " << count+1 << endl;
		cin >> userInts;
	}
	
	    for (int index = 0; index < usersSize; index ++)
        {
        cin >> num[index];
        }
	
	num = addToSize(userArray, usersSize);
   
	for(int index=0;index< (userSize + 1);index++)
	
		cout<<num[index]<<endl;

	delete[] num;	//Used to delete memory
	num = 0;
	
    return 0;
    
}

[helios]

Post the error messages.

[TarikNeaj]

int num; // integer variable called num.

You cant use num as an array, since it's not an array.

 cin >> num[index];
cout<<num[index]<<endl;
delete[] num;

You never create a variable or an array called userArray, so it doesnt exist.
num = addToSize(userArray, usersSize);

Sometimes you use num as an array, and sometimes as a singlevariable. You can't have it both ways.

[DisplayedPrism3]

In function 'int main()':
56:25: error: invalid types 'int[int]' for array subscript
59:18: error: 'userArray' was not declared in this scope
61:26: error: 'userSize' was not declared in this scope
63:18: error: invalid types 'int[int]' for array subscript
65:11: error: type 'int' argument given to 'delete', expected pointer

[LB]

Please stop posting so many threads:
http://www.cplusplus.com/forum/general/175726/
http://www.cplusplus.com/forum/beginner/175886/

You are being incredibly rude.